Producing artificial silk



Fume 5, w23. IASIQ?? l. KlTsEE PRODUCING ARTIFICIAL SILK Filed Oct. 25.1921 )I l Il /Mvm Patented 'dune 5 1923..

narran stares entrant crates.

ISIDOR KETSEE, OF PHILADELPHEA, PENNSYLVANA.

PRODUCING ARTIFICML SILK.

Application filed- October .23, 1921.. Serial Kto. 510,249..

. process.

ln application Serial No. 502,866 of Sept. 24, 1921, l havel illustratedanddescribed the means to generate the required gases at the point ofusing the same for the conver sion of the liber into required viscosity.lin Letters Patent No. 1,390,995 of Sept. 20, 1921, l have described aprocess with the aid of which the dissolving action of the fiber isgreatly exhilarated. In Letters Patent No. 1,389,517 of Aug. 30, 1921, Ihave illustrated and described means to produce the thread out of theviscous mass in a greatly improved manner as is practiced today. Themain object of this invention is to produce what I call a working unitwith the aid of which the raw fiber may be converted into a finishedthread, colored if deysired, automaticallywithout 'necessitating theremoval of the fiber, .in the diii'erent stages of operation, from thedevice. ln other words to produce.: a silk thread to be usedcommercially without manual labor from the time that th raw ber isplaced in its compartment,..till the nished thread isk takencolored ifdesired-from. the spoolr on which it is wound, thus saving a great dealof labor" and expense necessary with the processesy 'of today.

luth drawing which illustrates one form my invention may take, Fig, 1 isa vertical sectional view partly in elevation, illustratingdiagrammatically the different parts of the unit to be employed inaccordance with this my invention. Fig. 2 is a section ofthe convertingchamber of the unit The unit consists here of the generating chamber A,the converting chamber B, the storage tank C and the coagulating andspinning compartment D.

The nerating chamber A comprises here the casing 2 containing the liquid3 and comprising the hoppers 4 and 5 for the ammonium salt and calciumoxide respectively and `provided each with a measuring device 6 andvalve 7 it also comprises the agitator 8 adapted to be revolved throughmeans 9.

To the casing is attached the pipe 10 pro- 60 vided with the valve 11and water gauge 12. llt is also provided with a pressure and safetygauge 14- and the manhole 16. The operation of this part of the unit isclearly described in the 'application above men- 65 tioned. p

The converting chamber B comprises here the casing 17 inclosing theagitators. These agitators comprise here the revolvable gears 20fulcrumed each at 19 and provided each m with the wings 18. Theseagitators are revolved with the aid of the pinion 21 ulcrumed at 22.rlhe motive power may be mechanical or electrical. ln this casing, therequired fiber and liquid is introduced through manhole 23. rlhe methodof producing viscosity of the fiber is set forth in Letters Patent No.1,390,995 above cited.

The coagulating and spinning compartment D comprises here the casing 38pro- 80 vided here with the stationary receptacle 30 for the convertedsolution and the revolvable base 31 with its appended nipples or nozzles32. The revolvable part 31 is operated through the gears 39, the shaftof which may be revolved with the aid of mechanical or electrical means.The fibers issuingfrom the nozzles 32 are indicated by 33 and the threadspun from these fibers by- 34. The compressing means for this thread areindicated by 35 and the spool on which the thread is wound is indicatedby 36. 37 arethe means to revolve this spool in conjunction with themeans to revolve the base 31. agent. The mode or method of operatingthis part ofthe device is clearly set forth in Letters Patent No.1,389,517 aforesaid.

ln the practical working of the device I have found, that it isnecessary to insert 00 vbetween the converting chamber and coagulatingand spinning chamber a storage tank C so as to insure a continuousoperation. This tank C is here indicated by 26. It is connected on theupper side through pipe 105 24 to be closed by 25 with the convertingchamber B and on its lower side through pipe 27 provided with valve 28,with the interposition of a force pump 29 with the stationary receptacle30 through N0 pipe 27.

The chamber A is connected to chamber The casing contains thecoagulating B through lpipejl provided with safety and I pressure gauge14 and valve 15'.

Generally speaking, the gases are gen-f yveyed `4into the stationary.receptacle 30.

The pump 29 should exert pressure enough, so as to force the semi-fluidout of the nozzles or nipples in the form of fine streams to bevcoagulated in the coagulating bath.

This coagulating agent may be colored with a suitable dye. This, inbroad outlines embraces the continuous process of producing economicallythe desired thread out of the raw ber. 'v

In application above mentioned I have illustrated one means of producingthe required friction between the fiber and the copper. In thisapplication these means vary in detail from the one-above referred to.,but the end-result will be similar in both cases, I have illustrated oneconverting chamberas to be connected to the generating chamber A, butitis obvious and does not need Afurther illustration', that a number ofthese converting chambers may be connected on one side with onegenerating chamber and on the other side with one storage tank, so alsolis it obvious that a series of coagulating and spinning compartmentsmay connect with one and the same storage tank. I have illustrated thebase 31 and thescrew ofthe spool 36 as to be revolved together, but itis obvious that each of these devices .may have separate actuat ingmeans. In some cases, this separation may evenbe preferred, but I do notdeem it necessary lto illustrate this modification.

Havingnow described my invention, what I claim as new and desire tosecure by Letters Patents is:

1. In the production of artificial silk the method which consists incausin in one continuous operation automatical y to be produced adesired thread comprising .a

-series of filaments out of the raw fiber without necessitating theremoval of the ber during the dierent stages' of operation from thesource of supply and without al lowing the atmospheric air to contactwith 4the products during the dierent stages of production.`

2. In the production of artificial silk the method which consists incausing to be produced the :gaseous-agent required for the conversion ofthe liber-and causing then the converted liber to vbe Aspun into adesired thread in one continuous operation with- .out re uiring manualmanipulations during the di erent stages of operation and withoutallowing the atmospheric air'to contact with the products during thedifferent stages of production..

3. The process of producing the converting agent as well as theconversion of liber and its formation into a thread through theoperation of one working unit, continuously and automatically andwithout allowin the atmospheric air to contact with the products durinlgthe different stages of production.

4. n the production of artificial silk the improvement which consists inconverting with the aid of nascent ammonia gas in into a viscous mass,and coa lating and lspinning said coagulated mass lnto required 6.- In adevice of the class described a chamber 'for generatinggases,j aconverting chamber to convert a 'ber into a viscous mass, a reservoirfor said mass and -a coagulating and spinning chamber for the convertedcellulose and conveying. means connecting the diferent chambers andreservoir to each other.`

In testimonywhereof I ax my signature.

reinen Kirrsnn conjunction with copper, cellulose ibers i not

